Some indications may show that some areas may have hit the peak in Omicron infections and are on the way down, but still much higher than the previous peaks:
Boston wastewater is showing a clear decline in COVID detection (not down to pre-Omicron levels).
Likewise, Santa Clara County wastewater is showing a flattening or a decline. The Palo Alto treatment site shows a clear decline.
HOWEVER, it looks like virtually all of the country is still on the way up (including Sacramento & Monterey) according to wastewater measurements.
Climbing: Houston ; Wisconsin ; Ottawa ; Colorado ; Ohio ;
Mixed bag: a variety of sites around the SF part of Northern California (as measured by a Stanford project, SCAN) including one that is at Stanford (Codiga), which is in a clear decline (peaked Jan 2)
This is NOT the time to relax. Prudence would be to wait a few weeks before going out into crowds to make sure things are really getting down to the levels that we used to know as crazy high levels of infection.
As I looked around at wastewater numbers, I saw a few sites that had no real increase in virus signature in their wastewater even up to early January. So I expect there will be pockets that will burn later than the areas already starting to come down.
Other interesting COVID wastewater sites
UCSD COVID dashboard shows exposure locations and shows a campus map with wastewater indications for each building.
Missouri shows variants detected each week in wastewater around the state.
Worldwide links to wastewater dashboards. (there are far fewer than I expected. Lots of places doing some measurements, but not posting them consistently. The CDC is trying to collect the data and post it, but it is not ready yet.)